关于“Exploring an Ecommerce Dataset using SQL in Google BigQuery”的评价

Chaitanya S. · 已于 about 1 year前审核

This was a good lab (although not beginner-friendly) for using SQL. I think there should be more explanation on some exercises. For example, the 3rd challenge asks for "unique visit id". I know SQL enough to be familiar with CONCAT function, but there's nothing in this exercise that points to the use of this function, since I had no idea I was supposed to fuse two different IDs. I don't work with sales, and I don't know if this is common for this area or not, but I think there should be a fine print explaining what "unique visit id" is. If this was a real life situation, I'd probably ask my senior what each column stands for and what does this mean. Another example is conversion rate. I had a vague idea, but I don't think everyone that takes this course might know it. I had to look it up to understand what it meant. It's nice to propose an answer, but every time I came to check the answer I realized there was something in it that I couldn't possibly have known in factual terms (in SQL terms, everything was doable).

Marina M. · 已于 about 1 year前审核

Matt C. · 已于 about 1 year前审核

good

Ivan M. · 已于 about 1 year前审核

Eliud L. · 已于 about 1 year前审核

xenia d. · 已于 about 1 year前审核

Trisha C. · 已于 about 1 year前审核

Diego P. · 已于 about 1 year前审核

Ayoub L. · 已于 about 1 year前审核

MARCO AURELIO P. · 已于 about 1 year前审核

no explanation on how to write queries!!!

Inna G. · 已于 about 1 year前审核

This needs more explanation and people who are new to SQL will need additional support to understand what is being asked. The timer doesn't help as one feels anxious they will run out of time before completion

Miriam M. · 已于 about 1 year前审核

Edriel M. · 已于 about 1 year前审核

INSIGHTFUL

Rohan R. · 已于 about 1 year前审核

Janhavi D. · 已于 about 1 year前审核

Luigi B. · 已于 about 1 year前审核

Rafał W. · 已于 about 1 year前审核

Abhishek s. · 已于 about 1 year前审核

MELISA D. · 已于 about 1 year前审核

隼斗 細. · 已于 about 1 year前审核

Edi S. · 已于 about 1 year前审核

Maria Cathleen S. · 已于 about 1 year前审核

Ted M. · 已于 about 1 year前审核

Mohamed S. · 已于 about 1 year前审核

complexo

Sylvia M. · 已于 about 1 year前审核